WO2016023306A1

WO2016023306A1 - Method for rapidly manufacturing prototype using wire material as raw material and rapid prototyping machine therefor

Info

Publication number: WO2016023306A1
Application number: PCT/CN2014/093081
Authority: WO
Inventors: 周照耀; 吴菲; 姚碧波
Original assignee: 华南理工大学
Priority date: 2014-08-12
Filing date: 2014-12-05
Publication date: 2016-02-18
Also published as: CN104259352B; CN104259352A

Abstract

Disclosed is a method for rapidly manufacturing a prototype using a wire material as a raw material. The method is: first, pulling a strip of the wire material on a shaping plate (101) to form a straight or curved planar track shape and incorporating the wire material on the shaping plate, keeping the corresponding shape; then, taking the strip of wire material as a reference, performing rapid prototyping by layering to increase the material, which comprises two scenarios: 1) closely superimposing layer by layer other wire materials on the strip of wire material to form the spatial shape of the required component and realizing metallurgical bonding between the wire materials, thereby eventually obtaining a component in the required shape; and 2) bonding other wire materials and the strip of wire material strip by strip, adhering together in parallel to form a plate structure, realizing metallurgical bonding between the wire materials, then stacking the wire materials layer by layer on the plate structure according to the shape and length of the required track so as to form the spatial shape of the required component and realizing metallurgical bonding between the wire materials to obtain a component in the required shape. The invention further relates to a rapid prototyping machine capable of realizing the above-mentioned method. The method has a convenient operation, is stable and reliable, and has lower production costs.

Description

Method for rapidly manufacturing prototype by using wire material as raw material and rapid forming machine thereof

Technical field

The invention relates to the technical field of rapid prototyping, in particular to a method for rapidly manufacturing a prototype using a wire material as a raw material and a rapid prototyping machine thereof.

Background technique

Rapid prototyping, also known as rapid prototyping, is a three-dimensional welding and cladding rapid prototyping technology for feeding metal wire. It is a kind of rapid part manufacturing technology. It is a manufacturing method of layer-by-layer welding and growth forming. It can be directly manufactured. High-melting-point metal prototypes, while other wire-forming materials can be used to produce plastic, polymer materials, and low-melting-point metal prototypes (see Rapid Prototyping Technology, Wang Yunqi, Huazhong University of Science and Technology Press, 1999). The first edition of September, 81-83 pages); the metal powder 3D printing speed is very slow, the efficiency is very low, and the parts have the characteristics of powder metallurgy parts, the material mechanical properties are low, and the impact resistance is not strong. Xiang Yonghua, Lu Yaohui, Xu Binshi, Jiang Yan, Xia Dan published in "Welding Technology" 2009 7 The first page of the 38th volume of the month, page 1-5, is based on the development of rapid prototyping technology and its system based on three-dimensional welding cladding, and Li Chao, Zhu Sheng, Shen Canir, Liu Jian published in "China Surface Engineering" 2009 The 7th page of the 22nd volume of the June issue, page 7-22, is entitled: Research Status and Development Trends of Welding Rapid Prototyping Technology, describing the generation of more heat during welding and forming deformation of the manufactured parts, especially thin The deformation of the wall member and the thin plate member is large, thereby affecting the precision of the manufactured part, and limiting the application field of the rapid prototyping technology of the welding cladding. Hu Xiaodong and Zhao Wanhua published in "Mechanical Science and Technology", May 2005, Vol. 24, No. 5, pp. 540-542. Title: Paper on the process of plasma arc welding direct metal forming technology, describing the placement of the forming table In the water tank, while the welding is stacked and formed, the manufactured parts are water-cooled to minimize the amount of thermal deformation of the parts. However, since the wire is melted, the heat generated is large, and the heat dissipation effect is not ideal, and at the same time, in the water tank. It is inconvenient to operate and it is difficult to form larger sized parts.

Summary of the invention

The object of the present invention is to overcome the deficiencies and shortcomings of the prior art, and to provide an efficient, reliable, and convenient method for rapidly manufacturing a prototype using a wire material as a raw material and a rapid prototyping machine thereof.

In order to achieve the above object, the technical solution provided by the present invention is: a method for rapidly manufacturing a prototype by using a wire material as a raw material. First, drawing a wire material to form a straight or curved plane track shape on the forming plate, and simultaneously bonding the wire material On the forming plate, and maintaining the corresponding shape; secondly, the rapid forming layered superimposed additive is based on the wire material, including the following two cases:

1) closely layering other layers of wire on the wire to form the spatial shape of the desired member, and metallurgically bonding between the wires, and finally to obtain a member having a desired shape;

2) Combining other wires together with the strips of the wires to form a panel structure, and metallizing the wires to maintain a corresponding shape, and then wire the wires on the panel structure Layers are stacked in accordance with the desired trajectory shape and length to form the spatial shape of the desired components, and metallurgical bonding between the wires is achieved, and finally the members of the desired shape can be fabricated.

The wire is a flat ribbon having a rectangular and square cross section with opposite parallel faces.

The metallurgical bond is achieved by welding or heat sintering.

The wire is a wire or a non-metal wire.

The components of the desired shape are a container casing, a casing metal cover of a car, a shell-and-shell-shaped structural member, and a mechanical component.

A rapid prototyping machine according to the present invention comprises a forming plate, a table, an X-axis servo drive mechanism for driving the table to translate in the X-axis direction, and Y for driving the table to translate in the Y-axis direction. Shaft servo drive mechanism, lift drive mechanism for driving the table up and down, wire feed chuck with pressure roller, chuck motion servo drive mechanism, wire feed mechanism with wire wheel, laser welding mechanism, computer graphics processing The upper computer of the system and the lower computer of the control system, wherein the lifting drive mechanism is disposed under the workbench and connected to the worktable through a support block, the worktable is movably mounted on the support block, and is driven by the X-axis servo drive mechanism. And the Y-axis servo drive mechanism drives the translation in the XY axis direction; the forming plate is fixedly mounted on the work table, and the wire feed chuck is disposed above the forming plate, and the wire feeding mechanism is provided thereon. a through hole through which the wire passes, and the pressing of the wire can be achieved by a press roller, the wire feed chuck being driven by the chuck movement servo drive mechanism to realize three-dimensional movement of the space; the laser welding mechanism is arranged at The upper part of the stencil is used for welding between the wires and between the wire and the forming plate; the control system lower machine passes the control line with the X-axis servo drive mechanism, the Y-axis servo drive mechanism, the lifting drive mechanism, The chuck movement servo drive mechanism, the wire feeding mechanism and the laser welding mechanism are connected one by one, and the upper computer of the computer graphics processing system is connected with the lower system of the control system through a data transmission line, and the computer graphics processing system upper computer performs the graphic processing well. The data is transmitted to the lower computer of the control system, and the control system generates a control program for the lower computer to drive the controlled mechanism to perform corresponding actions according to the program.

The lower position machine of the control system comprises an X-direction motion control module, a Y-direction motion control module, a workbench lifting control module, a wire feeder chuck control module, a wire feeding mechanism control module, and a laser head control module.

Another rapid prototyping machine according to the present invention comprises a forming plate, a table, a rotary drive mechanism for driving the table to rotate horizontally, a lifting drive mechanism for driving the rotary drive mechanism to move up and down, and a pressure a wire feed chuck of a roller, a servo drive mechanism for a chuck, a wire feeding mechanism with a wire wheel, a laser welding mechanism, a computer graphics processing system upper computer, and a control system lower computer, wherein the lifting drive mechanism is provided in a rotary drive mechanism Bottom and connected thereto; the worktable is mounted on a rotary drive mechanism and can be driven to rotate by the rotary drive mechanism; the forming plate is fixedly mounted on the work table, and the wire feed chuck is disposed on the molding plate The upper part is provided with a through hole through which the wire material discharged from the wire feeding mechanism passes, and the pressing of the wire material can be realized by the pressing roller, and the wire feeding chuck is driven by the movement mechanism of the chuck movement to realize the space. Three-dimensional movement; the laser welding mechanism is disposed above the forming plate for realizing welding between the wires and between the wire and the forming plate; the control system lower position machine passes the control line The computer graphics processing system host computer is connected to the lower system of the control system through a data transmission line, and is connected to the rotary drive mechanism, the lifting drive mechanism, the chuck movement servo drive mechanism, the wire feeding mechanism and the laser welding mechanism. The computer graphics processing system host computer transmits the graphics processed data to the lower system of the control system, and the control system lower computer generates the control program to drive the controlled mechanism to perform corresponding actions according to the program.

The lower position machine of the control system comprises a worktable rotation control module, a workbench lifting control module, a wire feed clamp control module, a wire feeding mechanism control module and a laser head control module.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

1. The wire material is soft, easy to straighten, bend, fast, high efficiency and precise shape under room temperature conditions. The force required for forming is small and the energy consumed is small;

2. Compared with the welding cladding deposition forming method, when the wire materials of the present invention are closely combined and laminated by laser welding, the laser welding is cold welding, the wire material is not completely melted, and the heat generated is small, so the heat of the parts is Small deformation and higher dimensional accuracy;

3. Welding cladding deposition melts the welding wire to form a corrugated fusion welding trajectory. The wire material of the invention is not completely melted, the wire materials are neatly juxtaposed and closely combined, the layer welding process is regular in shape, and the dimensional accuracy is higher;

4. The surface of the material will not be oxidized, and there will be no oxidized inclusions or pore defects, which can guarantee the quality of metallurgical bonding;

5, the wire speed can be very fast, the forming efficiency is very high;

6, can quickly form high melting point material wire;

7. The method of the invention has simple process steps, stable and reliable, convenient operation, easy implementation, low production cost, suitable for large-scale industrial production, wide application range and good market prospect.

DRAWINGS

1 is a schematic view showing the structure of the rapid prototyping machine of the present invention in Embodiment 1.

2a to 2d are schematic views showing the working process of manufacturing the sheet metal parts of the rapid prototyping machine of the present invention in the first embodiment.

3a-3d are schematic views showing the working process of manufacturing a cube piece in the rapid prototyping machine of the present invention in the second embodiment.

4 is a schematic view showing the structure of the rapid prototyping machine of the present invention in Embodiment 3.

5a to 5d are schematic views showing the working process of manufacturing the bottle hollow member in the rapid prototyping machine of the present invention in the third embodiment.

Figure 6 is a schematic view of a wire feed chuck of the pressure roller of the present invention in Examples 1, 2, and 3.

detailed description

The invention will now be further described in conjunction with specific embodiments.

Example 1

The method for rapidly prototyping the wire material as the raw material according to the present invention is to firstly draw a wire material to form a straight or curved plane track shape on the forming plate, and at the same time, the wire material is combined on the forming plate and maintain the corresponding shape. Secondly, the rapid prototyping superimposed additive is based on the wire material, including the following two cases:

The wire is a rectangular ribbon having a rectangular and square cross section with relatively parallel faces, which may be a wire or a non-metal wire. The metallurgical bond can be achieved by welding or heat sintering.

As shown in FIG. 1 , a rapid prototyping machine capable of implementing the above method includes a forming plate 101 , a table 102 , an X-axis servo driving mechanism 103 for driving the table 102 to translate in the X-axis direction, and driving the same. a Y-axis servo drive mechanism 104 that translates the table 102 in the Y-axis direction, a lift drive mechanism 105 for driving the table 102 to move up and down, and a wire feed chuck 107 with a pressure roller 106 (shown in FIG. 6), a chuck movement servo drive mechanism 108, a wire feed mechanism 109 with a wire wheel, a laser welding mechanism 110, a computer graphics processing system host computer 111, and a control system lower position machine 112, wherein the lift drive mechanism 105 is disposed at the work table 102. Bottom, and connected to the table 102 through the support block 113, the table 102 is movably mounted on the support block 113, and is driven by the X-axis servo drive mechanism 103 and the Y-axis servo drive mechanism 104 to realize the translation in the XY-axis direction; The forming plate 101 is fixedly mounted on the table 102. The wire feeding chuck 107 is disposed above the forming plate 101, and is provided with a through hole through which the wire material discharged from the wire feeding mechanism 109 passes, and Realizing the wire by the pressure roller 106 Pressing, the wire feed chuck 107 is driven by the chuck motion servo drive mechanism 108 to realize three-dimensional movement of the space; the wire material discharged by the wire feed mechanism 109 is guided by the guide wheel 114 to enter the wire feed chuck 107. The laser welding mechanism 110 is disposed above the forming plate 101 for realizing welding between the wires and between the wire and the forming plate; the control system lower position machine 112 is respectively controlled by the X-axis through the control line The driving mechanism 103, the Y-axis servo driving mechanism 104, the lifting and lowering driving mechanism 105, the chuck moving servo driving mechanism 108, the wire feeding mechanism 109, and the laser welding mechanism 110 are connected one by one, and the computer graphics processing system host computer 111 passes data. The transmission line is connected to the control system lower computer 112. The computer graphics processing system host computer 111 transmits the graphics processed data to the control system lower position machine 112, and the control system lower position machine 112 generates a control program to drive the controlled mechanism to perform corresponding actions according to the program. . The control system lower position machine 112 includes an X-direction motion control module, a Y-direction motion control module, a table lift control module, a wire feed clamp control module, a wire feed mechanism control module, and a laser head control module.

Hereinafter, the invention will be specifically described by taking a sheet metal member as an example. In the present embodiment, a stainless steel flat wire 115 having a section width of 1 mm and a thickness of 0.5 mm was used. As shown in Figure 2a, the stainless steel flat wire 115 is passed through a through hole in the wire feed chuck 107, and the X-axis servo drive mechanism 103 and the Y-axis servo drive mechanism 104 drive the table 102 to align the end of the stainless steel flat wire 115. The forming plate 101 is initially formed, the pressing roller 106 is pressed against the end surface of the stainless steel flat wire 115 to be attached to the initial forming position of the forming plate 101, and the laser welding mechanism 110 emits laser light to weld the wire end to the wire. The forming plate 101 starts the forming position, and then the control system lower position machine 112 drives the X-axis servo driving mechanism 103 and the Y-axis servo driving mechanism 104 to drive the table 102 to scan the end of the stainless steel flat wire 115 according to the trajectory shown in FIG. 2a. The traction stainless steel flat wire 115 is continuously released from the wire reel of the wire feeding mechanism 109, and the wire is formed by the dots, and the stainless steel flat wire 115 is formed into a track shape composed of a straight line segment and a curve as shown in FIG. 2b according to the scanning track, and the pressure is pressed. The roller 106 is pressed against the upper surface of the stainless steel flat wire 115 with the wire feed chuck 107, and the wide surface of the stainless steel flat wire 115 is pressed against the molding plate 101 while laser welding the contact gap between the stainless steel flat wire 115 and the molding plate 101, Until At the end of the trajectory, the stainless steel flat wire 115 is then cut by a cutting mechanism (not shown). After forming and welding the first layer of material on the forming plate 101, the table is lowered by 0.5 mm, and the second layer of material is aligned and pressed on the first layer of material; the table is further lowered by 0.5 mm, and the second layer of material is The third layer of material is welded on the upper forming press; the table is further lowered by 0.5 mm, as shown in Fig. 2c, the fourth layer of material is aligned and pressed on the third layer of material, and the layers are stacked until the last one is completed. After the forming of the layer material is pressed and welded, a stainless steel sheet metal piece having a three-dimensional precise size and shape and having a thickness of 1 mm combined on the forming plate 101 as shown in FIG. 2d is obtained, and the forming plate 101 is cut off to obtain the required stainless steel sheet metal piece. .

Example 2

Different from the embodiment 1, the cube member was produced in the present embodiment, and a stainless steel square wire 116 having a section width of 1 mm and a thickness of 1 mm was used. The X-axis servo drive mechanism 103 and the Y-axis servo drive mechanism 104 drive the table 102 to align the ends of the stainless steel square wires 116 at the initial forming position of the forming plate 101, and the pressure roller 106 is pressed against the end surface of the stainless steel square wire 116. The laser welding mechanism 110 emits laser light, the end of the stainless steel square wire 116 is welded to the initial forming position of the forming plate 101, and then the control system lower position machine 112 drives the X-axis servo driving mechanism 103. And the Y-axis servo drive mechanism 104 drives the table 102 to scan the end of the stainless steel square wire 116 according to the trajectory shown in FIG. 3a, and the traction stainless steel square wire 116 is continuously released from the wire wheel of the wire feeding mechanism 109, and the line is formed by the dots. The stainless steel square wire 116 is formed into a straight line according to the scanning track, the pressing roller 106 is rolled on the upper surface of the stainless steel square wire 116, and the bottom surface of the stainless steel square wire 116 is pressed against the forming plate 101, and the stainless steel square wire 116 and the forming plate are laser welded. The contact gap of 101 is until the end of the line segment, after which the stainless steel square wire 116 is cut by a cutting mechanism (not shown). After the forming and welding of the first material is completed on the forming plate 101, the X-axis servo driving mechanism 103 drives the table 102 to translate by 1 mm, that is, the wire feeding chuck 107 holds the end of the stainless steel square wire 116 and translates relative to the first material. 1 mm, after the first material is attached to the forming and pressing to weld the second material; the X-axis servo driving mechanism 103 drives the table 102 to translate by 1 mm, that is, the wire feeding chuck 107 holds the end of the stainless steel square wire 116 The second material is translated by 1 mm, and then the second material is attached to the forming and pressing to weld the third material; the X-axis servo driving mechanism 103 drives the table 102 to translate by 1 mm, that is, the wire feeding chuck The end of the 107-clamped stainless steel square wire 116 is translated by 1 mm from the third material, and then the third material is attached to the forming material to weld the fourth material, and so on, as shown in Figure 3b. After the completion of the forming press-fitting of the last material, the strips of the wires are juxtaposed and joined together to form a panel surface, and the first layer of material bonded to the forming panel 101 is obtained. After the forming and welding of the first layer of material is completed on the forming plate 101, the table 102 is lowered by 1 mm, and then the second layer of material is pressed and welded on the first layer of material; the table is further lowered by 1 mm, and then the second layer The material is formed by pressing and welding the third layer of material; the table is further lowered by 1 mm, and then the fourth layer of material is formed by pressing on the third layer of material, as shown in Fig. 3c, until the final layer of material is completed. After the forming press-fitting welding, a stainless steel cube member having a three-dimensional precise size and shape combined on the forming plate 101 as shown in Fig. 3d is obtained, and the forming plate 101 is cut off to obtain a desired stainless steel cube piece.

Example 3

Different from Embodiment 1, the rapid prototyping machine of the present embodiment can manufacture a bottle hollow member, as shown in FIG. 4, including a forming plate 201, a table 202, and a rotation for driving the table 202 to rotate horizontally. The driving mechanism 203, the lifting drive mechanism 204 for driving the rotary driving mechanism 203 up and down, the wire feeding chuck 206 with the pressure roller 205 (as shown in FIG. 6), the chuck movement servo driving mechanism 207, and the wire wheel a wire feeding mechanism 208, a laser welding mechanism 209, a computer graphics processing system host computer 210, and a control system lower computer 211, wherein the lifting drive mechanism 204 is disposed below and connected to the rotation driving mechanism 203; The table 202 is mounted on the rotary drive mechanism 203 and can be driven to rotate by the rotary drive mechanism 203; the molding plate 201 is fixedly mounted on the table 202, and the wire feed chuck 206 is disposed above the molding plate 201. A through hole through which the wire discharged from the wire feeding mechanism 208 is passed is provided, and the wire can be pressed by the pressing roller 205, and the wire feeding chuck 206 is driven by the chuck moving servo drive mechanism 207 to realize the space. Three-dimensional movement The wire material discharged from the wire feeding mechanism 208 is guided by the guide wheel 212 to enter the through hole of the wire feeding chuck 206; the laser welding mechanism 209 is disposed above the forming plate 201 for realizing between the wires And the welding between the wire and the forming plate; the control system lower machine 211 passes through the control line and the rotary driving mechanism 203, the lifting drive mechanism 204, the chuck moving servo drive mechanism 207, the wire feeding mechanism 208, and the laser welding mechanism 209, respectively. The computer graphics processing system host computer 210 is connected to the control system lower computer 211 through a data transmission line, and the computer graphics processing system host computer 210 transmits the graphics processed data to the control system lower computer 211 for control. The system lower computer 211 generates a control program to drive the controlled mechanism to perform corresponding actions according to the program. The control system lower position machine 211 includes a worktable rotation control module, a workbench lifting control module, a wire feed chuck control module, a wire feeding mechanism control module, and a laser head control module.

Hereinafter, the invention will be specifically described by taking a bottle hollow member as an example. In the present embodiment, a stainless steel square wire 213 having a section width of 1 mm and a thickness of 1 mm was used. The wafer 214 shown in FIG. 5a is fixed at the center of the forming plate 201, and the stainless steel square wire 213 is passed through the through hole of the wire feeding chuck 206. The wire feeding chuck 206 and its chuck moving servo drive mechanism 207 The end of the driving stainless steel square wire 213 is aligned with the forming position of the forming plate 201 against the edge of the wafer 214, and the pressing roller 205 is pressed against the end of the stainless steel square wire 213 to be fitted to the original forming position of the forming plate 201. The laser welding mechanism 209 emits laser light, and the end of the stainless steel square wire 213 is welded to the initial forming position of the forming plate 201, and then the rotary driving mechanism 203 is controlled to drive the table 202 to rotate, and the wire of the stainless steel square wire 213 from the wire feeding mechanism 208 is pulled. The wheel is continuously released, and the end of the stainless steel square wire 213 is formed on the periphery of the wafer to form a circular trajectory, and the ring line is formed by the dots. The stainless steel square wire 213 is formed into a circular track shape around the wafer, and the pressure roller 205 is rolled on the stainless steel. On the upper surface of the square wire 213, the stainless steel square wire 213 is pressed against the forming plate 201, and the contact gap between the stainless steel square wire 213 and the wafer 214 is laser welded until a closed loop is formed, and then cut by a cutting mechanism (not shown). 213 square steel wire, stainless wire 213 so that the starting end and the terminating end butted and welded together. After the forming and welding of the first ring material is completed on the forming plate 201, the wire feeding chuck 206 clamps the end of the stainless steel square wire 213 radially outward by 1 mm with respect to the center of rotation, and then aligns the forming and pressing on the outer circumference of the first ring material. Welding the second ring material; the wire feeder chuck 206 holds the end of the stainless steel square wire 213 and then moves outward by 1 mm from the center of the rotation, and then aligns and forms the third ring material on the outer circumference of the second ring material; The chuck 206 holds the end of the stainless steel square wire 213 and moves outward by 1 mm in the radial direction with respect to the center of the rotation, and then the fourth ring material is welded and welded on the outer periphery of the third layer of material, as shown in FIG. 5b, and the ring is attached. After the completion of the forming and pressing of the last ring material, the wire loops and the phase sleeves are combined to form a round surface, and the first layer of the material is obtained. After the forming and welding of the first layer of material is completed on the forming plate 201, the table 202 is lowered by 1 mm, and the wire feeding chuck 206 holds the end of the stainless steel square wire 213 to perform a corresponding radial outward movement with respect to the center of rotation of the bottle body. The distance of outward movement is determined by the contour size of the corresponding position of the bottle body, and then the second layer of material is formed by pressing and pressing on the first layer of material; the table is further lowered by 1 mm, and the wire feeder chuck 206 is clamped with the stainless steel square wire 213 end. The head performs a corresponding radial outward movement with respect to the center of rotation of the bottle body, and the distance of the radially outward movement is determined by the contour size of the corresponding position of the bottle body, and then the third layer of material is formed by pressing and welding on the second layer of material; Drop 1 mm, the wire feeder collet 206 clamps the end of the stainless steel square wire 213 with respect to the center of rotation of the bottle body for corresponding radial outward movement, and the distance of the radial outward movement is determined by the contour size of the corresponding position of the bottle body, and then The third layer of material is formed by pressing and welding the fourth layer of material, as shown in FIG. 5c, and the layers are stacked until the final layer of material is formed and pressed, and the combination shown in FIG. 5d is obtained on the forming plate 201. Three-dimensional precise size And a stainless steel bottle having a shape and a thickness of 1 mm, and then cutting the formed plate 201 to obtain a desired stainless steel bottle body.

Example 4

Different from Embodiment 1, this embodiment produces a metal cover for an automobile engine cover.

Example 5

In this embodiment, the stainless steel bottle obtained by the production of Example 3 was placed in a vacuum sintering furnace and sintered at 1300 ° C for two hours to achieve a complete and uniform metallurgical bond between the wires.

Example 6

Different from Embodiment 3, in this embodiment, a stainless steel flat wire having a section width of 1 mm and a thickness of 0.1 mm is used. After the formation of one layer is completed, the wire is not cut, but is directly stacked on the next layer to continue forming. The shape of the bottle can be more accurately fitted.

Example 7

Different from Embodiment 3, this embodiment employs a sps discharge plasma sintering method.

Example 8

Different from the third embodiment, in the embodiment, the three wires are juxtaposed on the wire rod by using a wire drawing machine, and the three wires are simultaneously formed together, and the other two laser welding mechanisms emit two laser welding wires and three wires in parallel. Gap.

Example 9

The difference from the third embodiment is that the wire material of the present embodiment is nylon.

Example 10

The difference from the third embodiment is that the wire material of the present embodiment is a tungsten alloy.

Example 11

The difference from the third embodiment is that the wire material of the present embodiment is a quartz fiber.

Example 12

Different from Embodiment 1, in this embodiment, after the forming and welding of the first layer of material is completed on the forming plate, the table is lowered by 0.5 mm, the Y-axis direction of the table is translated by 0.1 mm, and the press-welding is formed on the first layer of material. Two layers of material; the table is further lowered by 0.5 mm, and the Y-axis direction of the table is further shifted by 0.1 mm. The third layer of material is formed by pressing and pressing on the second layer of material; the table is further lowered by 0.5 mm, and the Y-axis of the table is translated again. 0.1 mm, forming a fourth layer of material on the third layer of material, and stacking the layers until the final layer of material is formed and pressed, and then obtained a three-dimensional curved shape combined with a thickness of 1 mm on the forming plate. Stainless steel sheet metal pieces.

Example 13

Different from Embodiment 2, the lengths of the line segments on the same layer in this embodiment are not completely the same, and the number and length of the line segments on different layers are not completely the same, but are changed according to the data obtained by the graphics software processing, and the manufacturing is different. Space shaped parts.

Example 14

Different from Embodiment 2, this embodiment adopts a thin section H13 steel wire having a cross section of 0.1 mm × 0.1 mm, and the helical gear part is manufactured by the selective cover stack forming method of the present invention, and then placed in a vacuum sintering furnace at 1300 ° C. Sintering for two hours allows a complete and uniform metallurgical bond between the wires.

Example 15

Different from Embodiment 14, the present embodiment produces a cavity mold.

In summary, the principle of the method of the present invention is that when the cross-sectional area of the wire is small, the wire is soft, and it is easy to be drawn into a straight line and bent at room temperature, and a small force can pull the wire out of any trajectory. When the wire is welded to the rigid underlying material, the shape of the track can be maintained; at the same time, the wire forms a surface in space, and the wires are combined side by side to form a surface, and the metal wires of the side-by-side combination are metallurgically bonded. The slab layer is obtained, and the slab layer layer is superposed to form a space-shaped member; the wire covering selective covering of the present invention has the same principle as the selective cladding forming, except that the material to be deposited is not melted.

The embodiments described above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, variations in the shapes and principles of the present invention are intended to be included within the scope of the present invention.

Claims

A method for quickly prototyping a wire material as a raw material, characterized in that: first, drawing a wire material to form a straight or curved plane track shape on the forming plate, and simultaneously bonding the wire material to the forming plate and maintaining the corresponding shape Secondly, the rapid prototyping superimposed additive is based on the wire material, including the following two cases:

1) closely layering other layers of wire on the wire to form the spatial shape of the desired member, and metallurgically bonding between the wires, and finally to obtain a member having a desired shape;

2) Combining other wires together with the strips of the wires to form a panel structure, and metallizing the wires to maintain a corresponding shape, and then wire the wires on the panel structure Layers are stacked in accordance with the desired trajectory shape and length to form the spatial shape of the desired components, and metallurgical bonding between the wires is achieved, and finally the members of the desired shape can be fabricated.
A method for rapidly manufacturing a prototype using a wire as a raw material according to claim 1, wherein the wire is a rectangular ribbon having a rectangular and square cross section with opposite parallel faces.
A method for rapidly manufacturing a prototype from a wire material according to claim 1, wherein the metallurgical bond is achieved by welding or heat sintering.
A method for rapidly manufacturing a prototype using a wire material as a raw material according to claim 1, wherein the wire material is a metal wire material or a non-metal wire material.
The method for rapidly manufacturing a prototype using a wire material according to claim 1, wherein the member of the desired shape comprises a container casing, a metal cover of the outer casing of the automobile, a shape structure of the shell and the shell, Mechanical Parts.
A rapid prototyping machine capable of implementing the method of claim 1, comprising: a forming plate (101), a table (102), and an X-axis for driving the table (102) to translate in the X-axis direction a servo drive mechanism (103), a Y-axis servo drive mechanism (104) for driving the table (102) to translate in the Y-axis direction, a lift drive mechanism (105) for driving the table (102) to move up and down, Wire feeder chuck (107) with pressure roller (106), chuck motion servo drive mechanism (108), wire feed mechanism (109) with wire wheel, laser welding mechanism (110), computer graphics processing system host computer (111), a control system lower position machine (112), wherein the lifting drive mechanism (105) is disposed below the work table (102) and connected to the work table (102) through the support block (113), the work The stage (102) is movably mounted on the support block (113), and is driven by the X-axis servo drive mechanism (103) and the Y-axis servo drive mechanism (104) to realize translation in the XY-axis direction; the molding plate (101) is fixedly mounted On the workbench (102), the A wire feeder chuck (107) is disposed above the forming plate (101), and is provided with a through hole through which the wire material discharged from the wire feeding mechanism (109) passes, and can be realized by a pressing roller (106). Pressing the wire, the wire feed chuck (107) is driven by the chuck motion servo drive mechanism (108) to achieve three-dimensional movement of the space; the laser welding mechanism (110) is disposed above the forming plate (101) The welding between the wires and the wire and the forming plate is realized; the control system lower position machine (112) passes through the control line respectively with the X-axis servo drive mechanism (103), the Y-axis servo drive mechanism (104), and the lifting The driving mechanism (105), the chuck movement servo drive mechanism (108), the wire feeding mechanism (109), and the laser welding mechanism (110) are connected one by one, and the computer graphics processing system host computer (111) passes the data transmission line and The control system lower computer (112) is connected, the computer graphics processing system upper computer (111) transmits the graphic processed data to the control system lower computer (112), and the control system lower computer (112) generates a control program to drive the controlled mechanism. press Sequence corresponding action.
A rapid prototyping machine according to claim 6, wherein said control system lower position machine (112) comprises an X-direction motion control module, a Y-direction motion control module, a table lift control module, and a wire feed chuck. Control module, wire feeding mechanism control module, laser head control module.
A rapid prototyping machine capable of implementing the method of claim 1, comprising: a forming plate (201), a table (202), and a rotary drive mechanism (203) for driving the table (202) to rotate horizontally a lifting drive mechanism (204) for driving the rotary drive mechanism (203) up and down, a wire feed chuck (206) with a pressure roller (205), a chuck movement servo drive mechanism (207), with a wire a wire feeding mechanism (208), a laser welding mechanism (209), a computer graphics processing system upper computer (210), and a control system lower computer (211), wherein the lifting drive mechanism (204) is provided in a rotary driving mechanism ( 203) is connected to and connected to the rotary table (203), and can be driven to rotate by the rotary drive mechanism (203); the molding plate (201) is fixedly mounted on the workbench (202), the wire feed collet (206) is disposed above the forming plate (201), and is provided with a through hole through which the wire material discharged from the wire feeding mechanism (208) passes, and can pass Press roller (205) realizes the wire Pressing, the wire feed collet (206) is driven by the collet motion servo drive mechanism (207) to achieve three-dimensional spatial movement; the laser welding mechanism (209) is disposed above the forming plate (201) for realizing Welding between the wires and between the wire and the forming plate; the control system lower machine (211) passes through the control line with the rotary drive mechanism (203), the lifting drive mechanism (204), and the chuck movement servo drive mechanism ( 207), the wire feeding mechanism (208), the laser welding mechanism (209) are connected one by one, the computer graphics processing system host computer (210) is connected to the control system lower computer (211) through a data transmission line, the computer graphic The processing system host computer (210) transmits the graphics processed data to the control system lower computer (211), and the control system lower computer (211) generates a control program to drive the controlled mechanism to perform corresponding actions according to the program.
A rapid prototyping machine according to claim 8, wherein said control system lower position machine (211) comprises a table rotation control module, a table lifting control module, a wire feed chuck control module, and a wire feeding mechanism. Control module, laser head control module.